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Al-Yateem N, Hajras I, AlSaadi A, Alkabi S, Abdi Z, Abdulhamed M, Subu MA, Ahmed FR, Saifan AR. Utilizing self-report diaries to explore task time distribution of school nurses in UAE. Public Health Nurs 2024; 41:1056-1063. [PMID: 38946523 DOI: 10.1111/phn.13363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2024] [Revised: 04/28/2024] [Accepted: 06/07/2024] [Indexed: 07/02/2024]
Abstract
OBJECTIVE This study aims to evaluate the roles and tasks of school nurses in the UAE, quantify the time spent on each, and identify areas for improvement in school health services. This aligns with the UAE government's initiative to enhance primary healthcare, focusing on illness prevention and health promotion for children and adolescents. METHODS The research adopts an observational study design, utilizing self-observation through diary recordings by school nurses to collect data on their daily tasks and time allocation. A sample of total of 2024 school nurse activities were recorded and analyzed over 126 days and 1084 h of observation by eight school nurses using self-report diaries. This method allowed for the collection of detailed information on how nursing time is allocated between core and noncore tasks. RESULTS In this study a total of 2024 tasks were observed over 1084 h. The findings reveal that core nursing tasks accounted for 78% of activities but only 53% of the total 1084 h observed, while non-nursing tasks, making up 22% of activities, disproportionately consumed 47% of the hours. This discrepancy highlights the inefficiency of time allocation, with non-nursing tasks such as administrative duties taking significantly longer than core patient care tasks. CONCLUSIONS The study highlights a significant opportunity to enhance school health services in the UAE by optimizing the allocation of nursing time towards more illness prevention and health promotion interventions. By addressing the identified challenges, including the gaps in nurse competencies and the lack of structured practice frameworks, school health services can be improved.
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Affiliation(s)
- Nabeel Al-Yateem
- Department of Nursing, College of Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
| | - Islam Hajras
- Department of Nursing, College of Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
| | - Anoud AlSaadi
- Department of Nursing, College of Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
| | - Shaikha Alkabi
- Department of Nursing, College of Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
| | - Zahra Abdi
- Department of Nursing, College of Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
| | - Mayedah Abdulhamed
- Department of Nursing, College of Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
| | - Muhammad Arsyad Subu
- Department of Nursing, College of Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
- Faculty of Nursing and Midwifery, Binawan University, Jakarta, Indonesia
| | - Fatma Refaat Ahmed
- Department of Nursing, College of Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
- Critical Care and Emergency department, Faculty of Nursing, Alexandria University, Alexandria, Egypt
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Baiyasi M, St Claire K, Hengy M, Tur K, Fahs F, Potts G. Eyelash serums: A comprehensive review. J Cosmet Dermatol 2024; 23:2328-2344. [PMID: 38475901 DOI: 10.1111/jocd.16278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 02/27/2024] [Accepted: 03/01/2024] [Indexed: 03/14/2024]
Abstract
BACKGROUND Eyelash serums, both prescription and over-the-counter, are gaining popularity for enhancing the appearance of eyelashes through various biologically active molecules. Categorized into prostaglandin analogs and non-prostaglandin analogs, these serums claim increased strength, length, luster, and thickness. Current United States law also requires no efficacy or safety assessments by the Food and Drug Administration before approving products for consumer use, potentially posing health risks for patients seeking over-the-counter eyelash enhancements. AIMS Our aims include exploring proposed benefits and adverse effects associated with eyelash serums, while providing evidence-based clinical recommendations on their use. We aim to contribute valuable insights to the understanding of eyelash serums and their respective safety considerations. METHODS The authors conducted a comprehensive electronic search across databases including PubMed, Embase, Cochrane Central, and Google Scholar to evaluate eyelash serum ingredients. Articles were evaluated by two independent researchers for relevance, and the ingredients discussed were analyzed and given clinical recommendations for eyelash serums based off the Oxford Centre for Evidence-Based Medicine. RESULTS Results highlight bimatoprost's efficacy, supported by numerous studies evaluating safety and adverse effects. Other prostaglandin ingredients show potential benefits, but further studies are encouraged to enhance the understanding of respective safety profiles. While non-prostaglandins ingredients show promising data, more studies are needed due to a lack of formal evidence in eyelash serum use. CONCLUSION As the cosmeceutical market for eyelash serums is growing, dermatologists need to be knowledgeable about evidence-based information regarding prescription and over-the-counter eyelash serum products before making recommendations to patients.
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Affiliation(s)
- Maya Baiyasi
- Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Kayla St Claire
- Department of Dermatology, Wayne State University, Detroit, Michigan, USA
| | - Meredith Hengy
- Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Komal Tur
- Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Fatima Fahs
- Department of Dermatology, Wayne State University, Detroit, Michigan, USA
| | - Geoffrey Potts
- Department of Dermatology, Wayne State University, Detroit, Michigan, USA
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Phothong N, Pattarakankul T, Morikane S, Palaga T, Aht-Ong D, Honda K, Napathorn SC. Stability and release mechanism of double emulsification (W1/O/W2) for biodegradable pH-responsive polyhydroxybutyrate/cellulose acetate phthalate microbeads loaded with the water-soluble bioactive compound niacinamide. Int J Biol Macromol 2024; 271:132680. [PMID: 38806087 DOI: 10.1016/j.ijbiomac.2024.132680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 05/22/2024] [Accepted: 05/24/2024] [Indexed: 05/30/2024]
Abstract
Microbeads of biodegradable polyhydroxybutyrate (PHB) offer environmental benefits and economic competitiveness. The aim of this study was to encapsulate a water-soluble bioactive compound, niacinamide (NIA), in a pH-responsive natural matrix composed of PHB and cellulose acetate phthalate (CAP) by double emulsification (W1/O/W2) to improve the encapsulation efficiency (%EE) and loading capacity (%LC). PHB was produced in-house by Escherichia coli JM109 pUC19-23119phaCABA-04 without the inducing agent isopropyl β-D-1-thiogalactopyranoside (IPTG). The influences of PHB and polyvinyl alcohol (PVA) concentrations, stirring rate, PHB/CAP ratio and initial NIA concentration on the properties of NIA-loaded pH-responsive microbeads were studied. The NIA-loaded pH-responsive PHB/CAP microbeads exhibited a spherical core-shell structure. The average size of the NIA-loaded pH-responsive microbeads was 1243.3 ± 11.5 μm. The EE and LC were 33.3 ± 0.5 % and 28.5 ± 0.4 %, respectively. The release profiles of NIA showed pH-responsive properties, as 94.2 ± 3.5 % of NIA was released at pH 5.5, whereas 99.3 ± 2.4 % of NIA was released at pH 7.0. The NIA-loaded pH-responsive PHB/CAP microbeads were stable for >90 days at 4 °C under darkness, with NIA remaining at 73.65 ± 1.86 %. A cytotoxicity assay in PSVK1 cells confirmed that the NIA-loaded pH-responsive PHB/CAP microbeads were nontoxic at concentrations lower than 31.3 μg/mL, in accordance with ISO 10993-5.
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Affiliation(s)
- Natthaphat Phothong
- Program in Biotechnology, Faculty of Science, Chulalongkorn University, Phayathai Road, Patumwan, Bangkok 10330, Thailand.
| | - Thitiporn Pattarakankul
- Department of Microbiology, Faculty of Science, Chulalongkorn University, Phayathai Road, Patumwan, Bangkok 10330, Thailand.
| | - Shiho Morikane
- International Center for Biotechnology, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan.
| | - Tanapat Palaga
- Department of Microbiology, Faculty of Science, Chulalongkorn University, Phayathai Road, Patumwan, Bangkok 10330, Thailand.
| | - Duangdao Aht-Ong
- Department of Materials Science, Faculty of Science, Chulalongkorn University, Phayathai Road, Patumwan, Bangkok 10330, Thailand; Center of Excellence on Petrochemical and Materials Technology, Chulalongkorn University, Phayathai Road, Patumwan, Bangkok 10330, Thailand.
| | - Kohsuke Honda
- International Center for Biotechnology, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan.
| | - Suchada Chanprateep Napathorn
- Program in Biotechnology, Faculty of Science, Chulalongkorn University, Phayathai Road, Patumwan, Bangkok 10330, Thailand; Department of Microbiology, Faculty of Science, Chulalongkorn University, Phayathai Road, Patumwan, Bangkok 10330, Thailand; International Center for Biotechnology, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan.
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4
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Kaufman-Janette J, Cazzaniga A, Jacobson A, Eaton Jankov LL, Copeland K, Behfar A, Wyles S. Effect of Topical Platelet Extract Daily Serum as a Cosmetic Product to Reduce Facial Redness. THE JOURNAL OF CLINICAL AND AESTHETIC DERMATOLOGY 2023; 16:48-51. [PMID: 37915335 PMCID: PMC10617900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/03/2023]
Abstract
Objective The primary objective of this pilot study was to demonstrate the benefits of topical human platelet extract (plated)™ serum for the improvement of persistent facial redness. Methods This single-center, open-label pilot study evaluated six subjects using (plated)™ serum containing human platelet extract (HPE) with Renewosome™ technology twice daily for six weeks. The primary efficacy endpoint was a reduction in the Clinical Erythema Assessment (CEA) grade, and a reduction in Patient Subjective Assessment grade at six weeks. Secondary endpoints included an improvement in quality of life related to facial redness, and a reduction in redness by Mexameter™ spectrometry measurement. Safety data included monitoring for adverse events. Results Topical HPE serum demonstrated a statistically significant improvement in facial redness at Week 9 when averaging the Mexameter™ spectrometry results across nine regions of the face (p=0.0052). The primary and secondary endpoints were achieved. CEA grade at Week 6 demonstrated that all subjects improved by at least one grade, while one subject improved by two grades. One patient reported dryness. No other adverse effects were observed. Limitations Study limitations included a small sample size and lack of darker skin types (Fitzpatrick IV-VI). Conclusion This study demonstrates that topical HPE with Renewosome™ technology provides statistically significant reduction in facial redness and is safe and well-tolerated.
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Affiliation(s)
- Joely Kaufman-Janette
- Dr. Kaufman-Janette, Mr. Cazzaniga, and Dr. Jacobson are with Skin Research Institute in Coral Gables, Florida
| | - Alex Cazzaniga
- Dr. Kaufman-Janette, Mr. Cazzaniga, and Dr. Jacobson are with Skin Research Institute in Coral Gables, Florida
| | - Andrew Jacobson
- Dr. Kaufman-Janette, Mr. Cazzaniga, and Dr. Jacobson are with Skin Research Institute in Coral Gables, Florida
| | | | - Karen Copeland
- Dr. Copeland is with Boulder Biostatistics in Steamboat Springs, Colorodo
| | - Atta Behfar
- Drs. Behfar and Wyles are with Mayo Clinic in Rochester, Minnesota
| | - Saranya Wyles
- Drs. Behfar and Wyles are with Mayo Clinic in Rochester, Minnesota
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5
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Liu Y, Zhou Y, Chu C, Jiang X. The role of macrophages in rosacea: implications for targeted therapies. Front Immunol 2023; 14:1211953. [PMID: 37691916 PMCID: PMC10484341 DOI: 10.3389/fimmu.2023.1211953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 07/14/2023] [Indexed: 09/12/2023] Open
Abstract
Introduction Rosacea, a widespread chronic skin condition, may be influenced by macrophages, key immune cells in the skin, although their exact role is not yet fully understood. This review delves into the function of macrophages, their potential contribution to rosacea pathogenesis, current treatments, and promising macrophage-targeted therapies. It concludes by identifying knowledge gaps and potential areas for future rosacea research. Method Leveraging systematic and narrative literature review techniques, we conducted a comprehensive search of databases such as PubMed, Embase, and Web of Science. Utilizing keywords like "rosacea" and "macrophages", we targeted English articles from the last 5 years (2018-2023). We manually checked reference lists of relevant articles for additional studies. We included only articles emphasizing macrophages' role in rosacea and/or the development of related therapies and published within the specified timeframe. Results The systematic search of electronic databases yielded a total of 4,263 articles. After applying the inclusion and exclusion criteria, 156 articles were selected for inclusion in this review. These articles included original research studies, review articles, and clinical trials that focused on the role of macrophages in rosacea and/or the development of macrophage-targeted therapies for the disease. The selected articles provided a comprehensive and up-to-date overview of the current state of research on macrophages in rosacea, including their function in the skin, the potential mechanisms through which they may contribute to rosacea pathogenesis, and the current treatments and therapies available for the disease. Additionally, the articles identified gaps in knowledge regarding the role of macrophages in rosacea and suggested potential areas for future research. Conclusion This literature review emphasizes the important role that macrophages, vital immune cells in the skin, may play in the pathogenesis of rosacea, a common chronic inflammatory skin disorder. The selected studies suggest potential mechanisms by which these cells might contribute to rosacea progression, although these mechanisms are not yet fully understood. The studies also spotlight current rosacea treatments and illuminate the promising potential of new macrophage-focused therapies. Despite these insights, significant gaps persist in our understanding of the precise role of macrophages in rosacea. Future research in this area could provide further insights into the pathogenesis of rosacea and contribute to the development of more effective, targeted therapeutic strategies.
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Affiliation(s)
- Yi Liu
- Department of Dermatology, West China Hospital, Sichuan University, Chengdu, China
- Laboratory of Dermatology, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
- Medical Cosmetic Center, Chengdu Second People’s Hospital, Chengdu, Sichuan, China
| | - Yin Zhou
- Medical Cosmetic Center, Chengdu Second People’s Hospital, Chengdu, Sichuan, China
| | - Chenyu Chu
- Medical Cosmetic Center, Chengdu Second People’s Hospital, Chengdu, Sichuan, China
| | - Xian Jiang
- Department of Dermatology, West China Hospital, Sichuan University, Chengdu, China
- Laboratory of Dermatology, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
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6
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Lu W, Luo D, Chen D, Zhang S, Chen X, Zhou H, Liu Q, Chen S, Liu W. Systematic Study of Paeonol/Madecassoside Co-Delivery Nanoemulsion Transdermal Delivery System for Enhancing Barrier Repair and Anti-Inflammatory Efficacy. Molecules 2023; 28:5275. [PMID: 37446936 DOI: 10.3390/molecules28135275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 07/03/2023] [Accepted: 07/05/2023] [Indexed: 07/15/2023] Open
Abstract
Sensitive skin is defined as skin with low tolerance and high reactivity. Natural products, such as paeoniflorin and madecassoside, have unique skin care functionality. However, because they are hampered by the skin barrier, paeoniflorin and madecassoside have difficulty penetrating the stratum corneum, resulting in weakened skin barrier repair and anti-inflammatory effects. In addition, there is a lack of detailed studies on the efficacy of paeonol and madecassic in human skin, especially in 3D skin models and clinical trials. To overcome the low transdermal delivery issue, we developed nanoemulsions (PM-NEs) loaded with paeonol and madecassoside to improve their delivery efficiency and promote sensitive skin repair and anti-inflammation effects. Furthermore, systematic evaluations of the efficacy in cell line models, 3D skin models, and clinical trials were conducted. The PM-NEs effectively improved the efficacy of paeonol and madecassoside glucoside transdermal penetration and retention and enhanced cellular uptake. Cellular assays and 3D epidermal models showed that the PM-NEs significantly promoted the secretion of filamentous protein, aquaporin 3, Claudin-1, and hyaluronic acid, and considerably inhibited the secretion of interleukin 1α, interleukin 6, tumor necrosis factor-α, and prostaglandin E2 compared to free components. Notably, clinical trial data showed that the PM-NEs significantly reduced transepidermal water loss, a* values, erythropoietin, the amount of non-inflammatory acne, and the amount of inflammatory acne in the facial skin. Three levels of systematic studies suggest that co-delivery of paeoniflorin and madecassoside via nanoemulsions is a promising strategy to improve topical delivery efficiency and anti-inflammatory repair efficacy in sensitive skin.
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Affiliation(s)
- Wangwang Lu
- Guangzhou Jiyan Cosmetics Technology Co., Ltd., Guangzhou 510275, China
| | - Dan Luo
- National Engineering Research Center for Nanomedicine, Huazhong University of Science and Technology, Wuhan 430075, China
| | - Dan Chen
- National Engineering Research Center for Nanomedicine, Huazhong University of Science and Technology, Wuhan 430075, China
| | - Shuting Zhang
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Xuan Chen
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Hong Zhou
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Qian Liu
- Guangzhou Jiyan Cosmetics Technology Co., Ltd., Guangzhou 510275, China
| | - Siyuan Chen
- Institute for Biomaterials, Tech Institute for Advanced Materials, College of Materials Science and Engineering, Suqian Advanced Materials Industry Technology Innovation Center, NJTech-BARTY Joint Research Center for Innovative Medical Technology, Nanjing Tech University, Nanjing 211816, China
| | - Wei Liu
- National Engineering Research Center for Nanomedicine, Huazhong University of Science and Technology, Wuhan 430075, China
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
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7
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Kelly Á, Gandhi R, Khan I, Szakacs S, Natkunarajah J. The pits. Clin Exp Dermatol 2022; 47:1415-1417. [PMID: 35614868 DOI: 10.1111/ced.15169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 03/02/2022] [Accepted: 03/07/2022] [Indexed: 11/30/2022]
Abstract
A 71-year-old woman presented with a rash in the bilateral axillae. Histopathology showed hyperkeratosis and parakeratosis with retention of basophilic keratohyalin granules.
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Affiliation(s)
- Áine Kelly
- Department of Dermatology, Kingston Hospital, London, UK
| | - Ratnam Gandhi
- Department of Dermatology, Kingston Hospital, London, UK
| | - Imran Khan
- Departments of Dermatology, St George's Hospital, London, UK
| | - Susanna Szakacs
- Department of Histopathology, St George's Hospital, London, UK
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8
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Ruscinc N, Morocho-Jácome AL, Martinez RM, Magalhães WV, Escudeiro CC, Giarolla J, Rosado C, Velasco MVR, Baby AR. Vaccinium myrtillus L. extract associated with octocrylene, bisoctrizole and titanium dioxide: in vitro and in vivo tests to evaluate safety and efficacy. J Cosmet Dermatol 2022; 21:4765-4774. [PMID: 35029052 DOI: 10.1111/jocd.14779] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 01/10/2022] [Indexed: 11/27/2022]
Abstract
OBJECTIVE The harmful effects induced by ultraviolet exposition and the significant increment in skin cancer diagnosis confirm the necessity to develop effective and safe sunscreens. Limited efficacy and cutaneous adverse reactions of traditional formulations drove the incorporation of natural extracts into multifunctional sunscreens. Vaccinium myrtillus L. extract (VME), that contains anthocyanins and flavonoids, is a potential candidate for such systems. METHODS Considering that, we performed in vitro and in vivo tests to evaluate the sun protection factor (SPF), photostability and safety of sunscreen samples containing VME. RESULTS As main results, the SPF was reduced in both in vitro and in vivo evaluation in the presence of VME, nonetheless, the samples were photostable and safe. CONCLUSION Further investigation is required to better understand the unexpected effects of VME over photoprotection, decreasing the SPF value. As a conclusion, even with interesting findings, we highlight the importance of case-by-case investigations to develop multifunctional bioactive sunscreens.
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Affiliation(s)
- Nadia Ruscinc
- Department of Pharmacy, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, SP, Brazil
| | - Ana Lucía Morocho-Jácome
- Department of Pharmacy, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, SP, Brazil
| | - Renata Miliani Martinez
- Department of Pharmacy, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, SP, Brazil
| | | | | | - Jeanine Giarolla
- Department of Pharmacy, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, SP, Brazil
| | - Catarina Rosado
- CBIOS - Universidade Lusófona's Research Center for Biosciences and Health Technologies, Lisbon, Portugal
| | | | - André Rolim Baby
- Department of Pharmacy, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, SP, Brazil
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9
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Ferreira MS, Sousa Lobo JM, Almeida IF. Sensitive skin: Active ingredients on the spotlight. Int J Cosmet Sci 2021; 44:56-73. [PMID: 34813665 DOI: 10.1111/ics.12754] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 11/17/2021] [Accepted: 11/21/2021] [Indexed: 12/17/2022]
Abstract
OBJECTIVE Sensitive skin is characterized by self-reported sensory perceptions in response to stimuli that should not provoke unpleasant sensations. Cosmetic products for sensitive skin are designed to minimize these symptoms. This study aimed to unveil the most used active ingredients for sensitive skin in facial care products from the pharmacy and parapharmacy channel. METHODS A pool of products from the pharmacy and parapharmacy channel whose label included the expressions 'sensitive skin', 'reactive skin' or 'intolerant skin' were analysed. The active ingredients were identified from product compositions and ranked in descending order of occurrence. The scientific evidence regarding the mechanism of action and efficacy of each ingredient was also compiled. RESULTS Eighty-eight products from 19 multinational brands were included. Niacinamide leads the top, followed by Avena sativa, allantoin, glycyrrhetinic acid and derivatives and Laminaria ochroleuca. Ingredients that can reduce skin inflammation and act on the skin barrier were used in more than half of the products analysed. The clinical studies regarding the active ingredients used in these products remain sparse and lack methodological quality. Among the top ingredients, niacinamide, panthenol and acetyl dipeptide-1 cetyl ester were the only ones studied on volunteers having sensitive skin, while acetyl dipeptide-1 cetyl ester and palmitoyl tripeptide-8 were designed to act on the molecular targets involved in this condition. CONCLUSION This study reveals the most used active ingredients in cosmetic products for sensitive skin, as well as the scientific evidence supporting their efficacy and the mechanisms of action. This insight is meaningful for dermatologists and other health professionals to provide customized advice based on the symptomatology of individuals with sensitive skin, and for the formulation of cosmetic products and design of new active ingredients.
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Affiliation(s)
- Marta S Ferreira
- Associate Laboratory i4HB-Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, Porto, Portugal.,UCIBIO-Applied Molecular Biosciences Unit, MedTech, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - José M Sousa Lobo
- Associate Laboratory i4HB-Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, Porto, Portugal.,UCIBIO-Applied Molecular Biosciences Unit, MedTech, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - Isabel F Almeida
- Associate Laboratory i4HB-Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, Porto, Portugal.,UCIBIO-Applied Molecular Biosciences Unit, MedTech, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
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10
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Lai QWS, Guo MSS, Wu KQ, Liao Z, Guan D, Dong TT, Tong P, Tsim KWK. Edible Bird's Nest, an Asian Health Food Supplement, Possesses Moisturizing Effect by Regulating Expression of Filaggrin in Skin Keratinocyte. Front Pharmacol 2021; 12:685982. [PMID: 34354585 PMCID: PMC8329658 DOI: 10.3389/fphar.2021.685982] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 06/03/2021] [Indexed: 11/13/2022] Open
Abstract
Edible bird's nest (EBN) has been consumed as a Chinese delicacy for hundreds of years; the functions of which have been proposed to prevent lung disease, strengthen immune response, and restore skin youthfulness. To support the skin function of EBN, the water extract and the enzymatic digest of EBN with enriched digested peptides were tested in cultured keratinocyte, HaCaT cell line. The effects of EBN extract and digest in inducing proteins crucial for skin moisturizing were determined in both in vitro and ex vivo models. In cultured keratinocytes, the expressions of S100-fused type proteins contributing to skin barrier function in the stratum corneum, e.g. filaggrin and filaggrin-2, were determined in both mRNA and protein levels, which were markedly induced in the treatment of EBN extract or digest. The EBN-induced gene transcriptions of filaggrin and filaggrin-2 were mediated by activation of p38 MAPK pathway and various transcription factors, e.g. GATA3, PPARα, PPARβ, and PPARγ: these transcriptional factors were markedly activated by the digested products of EBN, as compared to the extract, in cultured keratinocytes. By using atomic force microscopy (AFM), the EBN-treated keratinocyte was shown to have more liquid-like morphology, as compared to a control cell. The EBN digest showed better induction on these moisturizing effects as compared to the extract. These lines of evidence therefore suggested the water moisturizing effect of EBN in skin function.
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Affiliation(s)
- Queenie Wing Sze Lai
- Shenzhen Research Institute, The Hong Kong University of Science and Technology, Shenzhen, China.,Division of Life Science and Center for Chinese Medicine R and D, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Maggie Sui Sui Guo
- Shenzhen Research Institute, The Hong Kong University of Science and Technology, Shenzhen, China.,Division of Life Science and Center for Chinese Medicine R and D, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Kevin Qiyun Wu
- Shenzhen Research Institute, The Hong Kong University of Science and Technology, Shenzhen, China.,Division of Life Science and Center for Chinese Medicine R and D, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Zhitao Liao
- Department of Physics, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Dongshi Guan
- State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences, Beijing, China
| | - Tina Tingxia Dong
- Shenzhen Research Institute, The Hong Kong University of Science and Technology, Shenzhen, China.,Division of Life Science and Center for Chinese Medicine R and D, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Penger Tong
- Department of Physics, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Karl Wah Keung Tsim
- Shenzhen Research Institute, The Hong Kong University of Science and Technology, Shenzhen, China.,Division of Life Science and Center for Chinese Medicine R and D, The Hong Kong University of Science and Technology, Hong Kong, China
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11
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Voegeli R, Guneri D, Cherel M, Summers B, Lane ME, Rawlings AV. Topical niacinamide enhances hydrophobicity and resilience of corneocyte envelopes on different facial locations. Int J Cosmet Sci 2020; 42:632-636. [PMID: 33038007 PMCID: PMC8365309 DOI: 10.1111/ics.12666] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 09/24/2020] [Indexed: 12/27/2022]
Abstract
Age-related differences in maturation parameters of corneocyte envelopes (size, hydrophobicity and rigidity) were examined at several facial test sites in young and old female Caucasians. In addition, the effect of topically applied niacinamide on these parameters was evaluated in a 4-week placebo-controlled study.
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Affiliation(s)
- R Voegeli
- DSM Nutritional Products Ltd, Wurmisweg 576, 4303 Kaiseraugst, Switzerland
| | - D Guneri
- UCL School of Pharmacy, 29-39 Brunswick Square, WC1N 1AX, London, UK
| | - M Cherel
- Newtone Technologies, 13bis, place Jule Ferry, 69006, Lyon, France
| | - B Summers
- Sefako Makgatho Health Sciences University, Basic Medical Sciences Building, Room N311, 3rd Floor, Molotlegi St., Medunsa 0204, Pretoria, Gauteng, South Africa
| | - M E Lane
- UCL School of Pharmacy, 29-39 Brunswick Square, WC1N 1AX, London, UK
| | - A V Rawlings
- UCL School of Pharmacy, 29-39 Brunswick Square, WC1N 1AX, London, UK.,AVR Consulting Ltd, 26 Shavington Way, Kingsmead, CW9 8FH, Northwich, Cheshire, UK
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12
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Iliopoulos F, Sil BC, Monjur Al Hossain A, Moore DJ, Lucas RA, Lane ME. Topical delivery of niacinamide: Influence of neat solvents. Int J Pharm 2020; 579:119137. [DOI: 10.1016/j.ijpharm.2020.119137] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 02/08/2020] [Accepted: 02/10/2020] [Indexed: 11/29/2022]
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